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US 10,241,438 B2Granted
Developing device having a developing unit that is pivotally supported about the axis of a shaft, and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTsukasa Abe, Masato Tanabe, Tatsuro Harada, Kazutaka Sueshige, Takashi Yano
Life of this patent
Estimating the term…
Abstract
A developing device includes a developing unit including a developer bearing member and a developing frame member configured to support the developer bearing member. The developing unit is supported to be pivotable about a first shaft and a second shaft. A biasing member configured to bias the first shaft is provided.
Claims23
A developing device comprising:
- a developing unit including a developer bearing member and a developing frame member, the developing frame member being configured to support the developer bearing member;
- an end supporting member configured to pivotably support the developing unit on one end side in an axis direction of the developer bearing member;
- an other-end supporting member configured to pivotably support the developing unit on the other end side in the axis direction;
- a first shaft provided on an outside surface of the developing frame member in the developing unit;
- a second shaft provided on either one of the developing unit and the other-end supporting member;
- a first hole provided in the end supporting member, the first hole being configured to support the first shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to allow the first shaft to move in a direction intersecting the axis direction;
- a second hole provided in the other of the developing unit and the other-end supporting member, the second hole being configured to support the second shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to restrain the second shaft from moving in the direction intersecting the axis direction;
- and
- a biasing member configured to bias the first shaft in the direction intersecting the axis direction,
- wherein the developing device is configured to be detachably mountable to an image forming apparatus independent of any image bearing member.
7 more elements
A developing device comprising:
- a developing unit including a developer bearing member and a developing frame member, the developing frame member being configured to support the developer bearing member;
- an end supporting member configured to pivotably support the developing unit on one end side in an axis direction of the developer bearing member;
- an other-end supporting member configured to pivotably support the developing unit on the other end side in the axis direction;
- a first shaft provided on an outside surface of the developing frame member in the developing unit;
- a second shaft provided on either one of the developing unit and the other-end supporting member;
- a first hole provided in the end supporting member, the first hole being configured to support the first shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to allow the first shaft to move in a direction intersecting the axis direction;
- a second hole provided in the other of the developing unit and the other-end supporting member, the second hole being configured to support the second shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to restrain the second shaft from moving in the direction intersecting the axis direction;
- and
- a biasing member configured to bias the first shaft in the direction intersecting the axis direction
- wherein the biasing member is an elastic member of which one end is supported by the end supporting member, and the other end is supported by the first shaft.
7 more elements
A developing device comprising:
- a developing unit including a developer bearing member and a developing frame member, the developing frame member being configured to support the developer bearing member;
- an end supporting member configured to pivotably support the developing unit on one end side in an axis direction of the developer bearing member;
- an other-end supporting member configured to pivotably support the developing unit on the other end side in the axis direction;
- a first shaft provided on the end supporting member;
- a second shaft provided on the other-end supporting member;
- a first hole provided in the developing frame at one end of the developing unit, the first hole being supported by the first shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to allow the developing unit to move relative to the first shaft in a direction intersecting the axis direction;
- a second hole provided in the developing frame at the other end of the developing unit, the second hole being configured to support the second shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to restrain the second shaft from moving in the direction intersecting the axis direction;
- and
- a biasing member configured to bias the first shaft in the direction intersecting the axis direction,
- wherein the developing device is configured to be detachably mountable to an image forming apparatus independent of any image bearing member.
7 more elements
A developing device comprising:
- a developing unit including a developer bearing member and a developing frame member, the developing frame member being configured to support the developer bearing member;
- an end supporting member configured to pivotably support the developing unit on one end side in an axis direction of the developer bearing member;
- an other-end supporting member configured to pivotably support the developing unit on the other end side in the axis direction;
- a first shaft provided on either one of the developing unit or the end supporting member;
- a second shaft provided on either one of the developing unit and the other-end supporting member;
- a first hole provided in the other of the developing unit and the end supporting member, the first hole being engaged with the first shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to allow the developing unit to move in a direction intersecting the axis direction;
- a second hole provided in the other of the developing unit or the other-end supporting member, the second hole being engaged with the second shaft so that the developing unit pivots about the first shaft and the second shaft and also being configured to restrain the developing unit from moving in the direction intersecting the axis direction;
- and
- a biasing member provided in either one of the developing unit and the end supporting member and configured to bias the other of the developing unit and the end supporting member in the direction intersecting the axis direction,
- wherein the end supporting member and the other-end supporting member are independently pivotable relative to the developing unit, and
- wherein the developing device is configured to be detachably mountable to an image forming apparatus independent of any image bearing member.
8 more elements
Dependencies are inferred from the claim text.